JP4255403B2 - Anti-panic mechanism for vehicle door latch device - Google Patents

Description

  The present invention relates to an anti-panic mechanism for a vehicle door latch device, and more particularly to a storage structure for an anti-panic spring of the anti-panic mechanism.

Conventionally, a lock lever that is connected in relation to the lock actuator and moves to an unlock position and a lock position around the lock shaft, and when the lock lever moves in the lock direction while being locked to the lock shaft, the lock lever With a spring that moves in the unlocking direction so as to follow the lock lever by the elasticity of the anti-panic spring when the lock lever moves in the unlocking direction. The door is moved from the standby position toward the operating position by the opening operation of the door lever and the door opening handle on the outside of the door, and the door is opened according to the displacement of the spring biasing lever connected to the spring biasing lever. Comprising an open link that is displaced between an engagement position where movement can be transmitted to the ratchet and a non-engagement position where transmission is not transmitted. Lever anti panic mechanism of the vehicle door latch apparatus polymerized placed in contact facing each other on the front side of the lock lever is known.
JP 2004-44360 A US Pat. No. 5,803,515 JP 2001-173289 A

The conventional anti-panic mechanism has a problem in the storage structure of the anti-panic spring.
For example, the anti-panic spring described in the first embodiment of Patent Document 1 has a structure in which the coil portion is disposed on the outer periphery of the lock shaft. The height is equal to the sum of the thickness of the lock lever, the thickness of the spring biasing lever, and the height of the coil portion, which is a disadvantageous structure in terms of space.
Also, the anti-panic spring described in the second embodiment of Patent Document 1 also has a coil portion that is simply mounted on the front side of the lock lever, so that a dedicated space is also provided in the axial direction of the lock shaft. I need.
On the other hand, since the anti-panic spring described in Patent Document 2 is housed in the thickness direction of the lock lever, a dedicated space in the axial direction of the lock shaft is not required. Since it is a leaf spring, it is difficult to ensure the necessary elasticity, and the effective angle at which elasticity can be applied to the spring biasing lever is limited, and there is a problem that it is easy to sag.

  Therefore, the present invention is related to the lock actuator 42 and is connected to the lock shaft 41 around the lock shaft 40 and is displaced to the unlock position U and the lock position L. The lock lever 41 is fixed to the lock shaft 40 and locked. When the lock lever 41 moves in the lock direction, it moves integrally in the lock direction by mechanical contact with the lock lever 41. However, when the lock lever 41 moves in the unlock direction, the anti-panic spring 50 elastically moves the lock. A spring biasing lever 49 that moves in the unlocking direction so as to follow the lever 41, and the spring biasing lever that moves from the standby position toward the operating position by opening the door opening handle 34 of the door. 49 and an engagement position U ′ that can transmit the opening movement to the ratchet 14 according to the displacement of the spring biasing lever 49. The spring biasing lever 49 is overlapped with the back surface of the lock lever 41 in contact with the front side of the lock lever 41, and the lock shaft The shaft hole 86 of the lock lever 41 into which the 40 is inserted is formed in a two-stage shaft hole, and the coil portion 88 of the anti-panic spring 50 is accommodated in the upper large-diameter shaft hole 87, and the lock lever 41 is engaged with the lock lever 41. The first leg portion 89 of the anti-panic spring 50 to be joined communicates with the large-diameter shaft hole 87 and is accommodated in the first storage portion 90 having the same depth as the large-diameter shaft hole 87, and the front side of the lock lever 41 Alternatively, a shallow fan-shaped second storage portion 92 for storing the second leg portion 91 of the anti-panic spring 50 to be engaged with the spring bias lever 49 is formed on the back surface of the spring bias lever 49. It is obtained by an anti-panic mechanism of the vehicle door latch device.

According to the present invention, the shaft hole 86 of the lock lever 41 into which the lock shaft 40 is inserted is formed in a two-stage shaft hole, and the coil portion 88 of the anti-panic spring 50 is accommodated in the upper large-diameter shaft hole 87. Therefore, the coil part 88 can be accommodated rationally, and an increase in thickness in the axial direction of the lock shaft 40 by the coil part 88 can be suppressed.
Further, since the first leg portion 89 of the anti-panic spring 50 is housed in the first housing portion 90 communicated with the large diameter shaft hole 87, the first leg portion can be simply inserted into the large diameter shaft hole 87. 89 can be engaged with the lock lever 41, and assembly is facilitated.
Moreover, since the fan-shaped shallow 2nd accommodating part 92 which accommodates the 2nd leg part 91 of the anti-panic spring 50 is formed in the front side of the lock lever 41, the increase in thickness by the 2nd leg part 91 can also be suppressed. .

  FIG. 1 shows a front view of a vehicle door latch device 10 according to the present invention. A latch unit 11 of the door latch device 10 includes a latch 13 that can be engaged with a striker 12 fixed to a vehicle body (not shown), as is well known. And a ratchet 14 engaged with the latch 13. The latch 13 and the ratchet 14 are disposed in a space between the resin latch body 15 and the metal cover plate 16 fixed to the front surface of the latch body 15, and are fixed by a latch shaft 17 and a ratchet shaft 18 extending in the front-rear direction. Is done. The latch 13 is urged in the direction of arrow A by the latch spring elasticity, and the ratchet 14 is urged in the direction of arrow B by the ratchet spring elasticity.

  As shown in FIG. 2, a metal back plate 19 is disposed on the back side of the latch body 15, and the three members of the cover plate 16, the latch body 15 and the back plate 19 are integrally fixed by a plurality of screws 20. The Further, a ratchet lever 21 that is fixed to the ratchet shaft 18 is provided on the back side of the latch body 15. The ratchet lever 21 rotates integrally with the ratchet 14. Screw holes 23 and 24 are provided in the back plate 19. The screw hole 23 is a screw hole in the front-rear direction, and the screw hole 24 is a left-right screw hole formed in the rear bent portion 25 of the back plate 19. The screw hole 24 is opposed to the rear bent plate 26 integrally formed at the indoor side end portion of the cover plate 16 with a predetermined interval 27, and the screw hole 24 and the axial center coincide with the rear bent plate 26. A through hole 28 is formed. The latch unit 11 is formed as a module and is screwed to the housing 22 using screw holes 23 and 24.

  The housing 22 includes an outdoor main case 29 having a substantially L shape when viewed from above, and a lid-like sub case 30 attached to the indoor side surface of the main case 29. As shown in FIG. 3, a front storage portion 31 for storing the latch unit 11 is formed.

  A support pin 32 in the front-rear direction is planted at the bottom wall lower part (back wall lower part) of the front housing part 31 of the main case 29, and an open lever 33 is pivotally supported on the support pin 32 as shown in FIG. The outdoor end of the open lever 33 penetrates through the main case 29 and protrudes to the outside of the housing 22 and is connected to the outer door opening handle 34 of the door. The open lever 33 is urged counterclockwise in FIG. 1 by a spring 35 provided around the support pin 32. When the latch unit 11 is stored in the front storage portion 31, the front portion of the support pin 32 is inserted into the boss hole 36 of the latch body 15.

  FIG. 3 shows the indoor storage part 37 of the main case 29. The indoor storage part 37 is covered with the sub case 30 shown in FIG. In FIG. 3, an open link 38 extending vertically is disposed in the indoor storage portion 37, and the lower portion of the open link 38 is connected to the first indoor end 33 </ b> A of the open lever 33. When the first indoor side end 33A is moved upward by the opening operation, the open link 38 is moved upward from the standby position to the operating position (see FIGS. 5 to 8). The open link 38 is configured such that the upper part thereof is swingable in the front-rear direction around the connecting portion with the first indoor side end portion 33A, and the engagement position U ′ (FIGS. 3 and 5) according to the rotation of the lock lever described later. And disengagement position L ′ (FIG. 6).

  The open link 38 is provided with a contact portion 39. When the open link 38 is in the engagement position U ′, the abutment portion 39 faces the ratchet tab 21A of the ratchet lever 21 so as to be engageable in the vertical direction. In this state, the open link 38 is rotated by the rotation of the open lever 33. When moving upward toward the operating position, the abutment portion 39 abuts on the ratchet tab 21A and rotates the ratchet 14 in the direction of the opposite arrow B to release the engagement between the ratchet 14 and the latch 13 so that the door can be opened. To. On the other hand, when the open link 38 is in the non-engagement position L ′, the contact portion 39 moves to the side of the ratchet tab 21A and pushes up the ratchet tab 21A even if the open link 38 moves up. The door cannot be opened.

  A hook 38A that can be engaged with the second ratchet tab 21B of the ratchet lever 21 is provided on the upper portion of the open link 38 as desired. The second ratchet tab 21B enters the hook 38A as shown in FIG. 5 in the door open state (the state in which the ratchet 14 moves in the opposite arrow B direction and is detached from the latch 13). Although the displacement from the engagement position U ′ to the non-engagement position L ′ is restricted, when the door is in a closed state (a state where the ratchet 14 is moved in the direction of arrow B and engaged with the latch 13), FIG. As described above, the restriction is released below the hook 38A. In the door open state, the open link 38 can be switched from the engagement position U ′ to the non-engagement position L ′ by moving the open link 38 to the operating position.

  A lock lever 41 (FIG. 9) is pivotally supported by a left and right lock shaft 40 at a position above the open link 38 in the indoor storage portion 37, and the lock lever 41 is locked above the lock lever 41. A lock actuator 42 that is displaced to a position L (FIG. 6) and an unlock position U (FIG. 5) is provided. The lock actuator 42 includes a motor 43, a cylindrical worm 44 fixed to the rotation shaft of the motor 43, and a worm wheel (output member) 45 that meshes with the cylindrical worm 44. A gear 47 having five tooth portions is fixed to the rotation shaft 46 of the output member 45, and the gear 47 is engaged with a tooth portion 48 formed on the lock lever 41. The output member 45 is held in a neutral position when the motor 43 is not energized by the elasticity of a neutral return spring (not shown), and is driven clockwise (unlocked) and counterclockwise from the neutral position by the power of the motor 43. It can be rotated in both directions (lock rotation direction). The configuration from the motor 43 to the tooth portion 48 can use the configuration described in JP 2001-173289 A. When the output member 45 rotates clockwise, the lock lever 41 is displaced from the lock position L to the unlock position U. Thereafter, even if the output member 45 rotates counterclockwise by the elasticity of the neutral return spring and returns to the neutral position, the lock lever 41 is held in the unlock position U as it is, and the output member 45 is counteracted from the neutral position by the motor power. When it rotates clockwise, the lock lever 41 is returned from the unlock position U to the lock position L. Thereafter, even if the output member 45 rotates clockwise by the elasticity of the neutral return spring and returns to the neutral position, the lock lever 41 remains in the lock position. When the output member 45 is held as it is, and the output member 45 is in the neutral position, the rotation of the lock lever 41 is not transmitted to the output member 45. It made.

  A spring biasing lever 49 (FIG. 10) is fixed to the lock shaft 40. The spring biasing lever 49 is biased counterclockwise in FIG. 3 by the elasticity of the anti-panic spring 50 (FIG. 11) with respect to the lock lever 41. The spring urging lever 49 is always maintained in contact with the stopper wall 51 of the lock lever 41. When the lock lever 41 moves in the clockwise direction (lock direction), the spring biasing lever 49 moves in the clockwise direction by mechanical contact with the stopper wall 51, but the lock lever 41 is counterclockwise. When moving in the rotation direction (unlock direction), the anti-panic spring 50 moves in the clockwise direction following the lock lever 41 by the elasticity of the anti-panic spring 50. The spring biasing lever 49 is provided with a pin 53 slidably engaged with a slot 52 formed in the open link 38, and the lock position L and unlock position of the lock lever 41 are engaged by the engagement of the slot 52 and the pin 53. The displacement between U and U is transmitted to the open link 38, and the open link 38 is displaced to the disengagement position L ′ and the engagement position U ′.

  A sub-lock lever 55 (FIG. 12) is pivotally fixed to the left side of the indoor storage part 37 by a sub-lock shaft 54. The protrusion 56 at one end of the sub-lock lever 55 is engaged with the elongated hole 57 of the lock lever 41 so that the sub-lock lever 55 and the lock lever 41 are displaced integrally. A state detection switch 59 in which the abutment arm 58 of the sublock lever 55 contacts and separates is provided at the side of the sublock lever 55, and the position of the lock lever 41 is detected by contact between the contact arm 58 and the state detection switch 59. Is done.

  A key lever 60 is disposed below the indoor storage unit 37. The rotation shaft 61 of the key lever 60 is fixed in the end opening cylinder portion 62 of the main case 29, and the door key cylinder 63 is connected to the rotation shaft 61 in the end opening cylinder portion 62. One end of a connecting link 64 is rotatably connected to the tip of the key lever 60, and the other end of the connecting link 64 is fixed to the key interlocking disc 65 (FIG. 13). The key interlocking disk 65 is fixed to the sub-lock shaft 54. The key interlocking disc 65 is formed with a connection notch 66 and a switch notch 67 having a circumferential width around the sub-block shaft 54. A protrusion 68 formed integrally with the sub-lock lever 55 is engaged with the connection notch 66 with a lost motion. Through this engagement, the lock operation and the unlock operation by the door key cylinder 63 are transmitted to the lock lever 41. A switching terminal of the key operation detection switch 69 is engaged with the switch notch 67 with lost motion. A signal from the key operation detection switch 69 is used to control the lock actuator of the door latch device of the other seat.

  A substantially L-shaped inner lever 71 (FIG. 14) is pivotally fixed to the lower side of the indoor storage portion 37 by a shaft 70. As shown in FIG. 4, one end 72 of the inner lever 71 is exposed to the outside of the housing 22 through the opening of the sub case 30 and is connected to an inner door opening handle 73 of the door. A one motion lever 74 is fixed to the other end of the inner lever 71. The one-motion lever 74 is formed at its tip with a pressing portion 75 that can contact the ratchet tab 21A of the ratchet lever 21. When the inner lever 71 rotates, the one-motion lever 74 moves upward along the guide 76 formed on the inner surface of the sub case 30 and comes into contact with the ratchet tab 21A, whereby the ratchet 14 rotates in the direction opposite to the arrow B. Then, it is released from the latch 13 and the door can be opened. Further, a bent portion 71A that can be engaged with the second indoor side end portion 33B of the open lever 33 is formed at the other end of the inner lever 71. When the inner lever 71 rotates, the bent portion 71A contacts the second indoor side end portion 33B and moves the open link 38 upward from the standby position to the operating position.

  A keyless lever 78 (FIG. 15) is fixed to the inner lever 71 by a pin 77. The keyless lever 78 is biased in the clockwise direction by the spring 79, and the projection 80 is maintained in a state where it abuts against the inner lever 71. When the inner lever 71 is rotated by the inner door opening handle 73 in the unlocked state of FIG. 3, the keyless lever 78 is displaced to the side of the corner portion 81 of the sub-block lever 55. In this state, when the sub-lock lever 55 is rotated counterclockwise in order to switch the lock lever 41 from the unlock position U to the lock position L, the corner portion 81 of the sub-lock lever 55 contacts the side surface of the keyless lever 78. By this contact, the keyless lever 78 rotates counterclockwise against the spring 79, so that the lock lever 41 is switched to the lock position L by the sub-lock lever 55.

  When the sub-lock lever 55 is rotated counterclockwise from the unlocked state of FIG. 3 to the locked state, the corner 81 of the sub-lock lever 55 faces the tip of the keyless lever 78 so as to be able to come into contact therewith. When the inner lever 71 is rotated by the inner door opening handle 73 in this locked state, the keyless lever 78 abuts against the corner portion 81 to rotate the sub-lock lever 55 clockwise, thereby unlocking the lock lever 41 from the lock position L. Return to position U.

  As shown in FIG. 4, the end of the sub-block shaft 54 penetrates the sub case 30 and protrudes outward, and an external lever 83 connected to the door inner lock button 82 is fixed thereto. The sub case 30 is provided with an insertion flange 84 that is inserted into a space 27 between the rear bent portion 25 of the back plate 19 of the latch unit 11 and the rear bent plate 26 of the cover plate 16. The insertion flange 84 is provided with a through hole 85 whose axial center coincides with the screw hole 24 and the through hole 28, and the screw inserted into the through holes 28 and 85 is screwed into the screw hole 24, whereby the cover plate 16. The sub case 30 and the back plate 19 are firmly fixed.

  As shown in FIG. 16, the spring urging levers 49 are arranged so as to be in contact with each other on the front side of the lock lever 41. The shaft hole 86 of the lock lever 41 into which the lock shaft 40 is inserted is formed in a two-stage shaft hole, and the coil portion 88 of the anti-panic spring 50 is accommodated in the upper large-diameter shaft hole 87. The short first leg 89 of the anti-panic spring 50 is housed in the first housing part 90 communicated with the large diameter shaft hole 87. The first storage portion 90 is formed to the same depth as the large diameter shaft hole 87. The front side of the lock lever 41 in contact with the spring biasing lever 49 is formed in a wide fan shape, and a shallow fan-shaped second storage portion 92 for storing the second leg portion 91 of the anti-panic spring 50 is formed there. The second leg portion 91 extends in the second storage portion 92 in the radial direction of the lock shaft 40, and then the spring bias lever 49 so that the locking portion 93 at the tip does not protrude from the surface of the spring bias lever 49. The engaging recess 94 is engaged.

Next, the operation will be described.
In the unlocked state of FIG. 3, when the open lever 34 is rotated by the outer door opening handle 34 to move the open link 38 upward, the contact portion 39 of the open link 38 contacts the ratchet tab 21A and pushes it up. Accordingly, the latch 13 is released from the ratchet 14, and the door can be opened.

  When the inner lock button 82 or the like is locked in the unlocked state of FIG. 3, the lock lever 41 rotates clockwise via the sub-lock lever 55 and moves to the lock position L. As a result, the spring biasing lever 49 is also moved integrally in the clockwise direction by mechanical contact with the stopper wall 51 of the lock lever 41, and the open link 38 is moved to the non-engaging position L ′ as shown in FIG. Displace.

  When the door is opened in the unlocked state, the second ratchet tab 21B enters the hook 38A of the open link 38 as shown in FIG. The displacement to the engagement position L ′ is restricted. In the door open state, the engagement between the second ratchet tab 21B and the hook 38A can be released by moving the open link 38 up to the operating position by the outer door opening handle 34 or the inner door opening handle 73. When the lock button 82 or the like is locked, the open link 38 can be switched from the engagement position U ′ to the non-engagement position L ′.

  In the locked state of FIG. 6, even if the open link 38 is moved upward by the door opening operation, the contact portion 39 of the open link 38 does not contact the ratchet tab 21A, so the door is not opened, as shown in FIG. In addition, the contact portion 39 of the open link 38 moves up to the side of the ratchet tab 21A. When the lock lever 41 rotates counterclockwise by the unlocking operation in the state of FIG. 7 in which the door opening operation is performed, the spring biasing lever 49 rotates counterclockwise via the elasticity of the anti-panic spring 50 and the open link 38. Rotates clockwise toward the engagement position L ′. At this time, since the abutment portion 39 abuts on the ratchet tab 21A, the open link 38 cannot be stopped and displaced to the engagement position, and the spring biasing lever engaged with the slot 52 of the open link 38 49 also stops on the way. However, the lock lever 41 rotates to the unlock position U leaving the spring urging lever 49 by widening the anti-panic spring 50, and enters the semi-panic state of FIG.

  When the semi-panic state is reached, the outer door opening handle 34 is once released, the open link 38 is returned from the operating position to the standby position, and the contact portion 39 is moved below the ratchet tab 21A. Then, the open link 38 and the spring urging lever 49 are rotated by the elasticity of the anti-panic spring 50 to return to the unlocked state of FIG. 3, and when the door is opened again by the outer door opening handle 34, the second time. The door can be opened without unlocking.

Thus, in the present invention, the shaft hole 86 of the lock lever 41 into which the lock shaft 40 is inserted is formed in a two-stage shaft hole, and the coil portion 88 of the anti-panic spring 50 is accommodated in the upper large-diameter shaft hole 87. Therefore, the coil part 88 can be accommodated rationally, and an increase in thickness in the axial direction of the lock shaft 40 by the coil part 88 can be suppressed.
Further, since the first leg portion 89 of the anti-panic spring 50 is housed in the first housing portion 90 communicated with the large diameter shaft hole 87, the first leg portion can be simply inserted into the large diameter shaft hole 87. 89 can be engaged with the lock lever 41, and assembly is facilitated.
Moreover, since the fan-shaped shallow 2nd accommodating part 92 which accommodates the 2nd leg part 91 of the anti-panic spring 50 is formed in the front side of the lock lever 41, the increase in thickness by the 2nd leg part 91 can also be suppressed. . The second storage portion 92 can also be formed on the back side of the spring biasing lever 49.
Further, the spring biasing lever 49 is provided with an engagement recess 94 for engaging the tip locking portion 93 of the second leg 91 so as not to protrude from the surface of the spring biasing lever 49. The increase in thickness can be suppressed.

The front view of the door latch apparatus by this invention. The rear view of the latch unit of the said door latch apparatus. The side view which shows the indoor side accommodating part of the main case of the said door latch apparatus. The room inner side view of the subcase of the said door latch apparatus. Explanatory drawing which shows an unlocked state. Action | operation explanatory drawing which shows a locked state. Explanatory drawing which shows the state which moved the open link up to the operation position in the locked state. Action explanatory drawing which shows the state which displaced the lock lever to the unlocking position in the state of FIG. The front view of a lock lever. The front view of a spring biasing lever. The front view of an anti-panic spring. The front view of a sublock lever. The front view of a key interlocking disk. The front view of an inner lever. The front view of a keyless lever. Sectional drawing of a lock lever and a spring urging lever.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Door latch apparatus, 11 ... Latch unit, 12 ... Striker, 13 ... Latch, 14 ... Ratchet, 15 ... Latch body, 16 ... Cover plate, 17 ... Latch shaft, 18 ... Ratchet shaft, 19 ... Back plate, 20 ... Screw 21 ... Ratchet lever, 21A ... Ratchet tab, 21B ... Ratchet tab, 22 ... Housing, 23, 24 ... Screw hole, 25 ... Back bent part, 26 ... Back bent plate, 27 ... Spacing, 28 ... Screw hole, 29 ... Main case, 30 ... sub case, 31 ... front storage part, 32 ... support pin, 33 ... open lever, 33A ... first indoor side end, 33B ... second indoor side end, 34 ... outside door opening handle, 35 ... Spring, 36 ... Boss hole, 37 ... Indoor storage part, 38 ... Open link, 38A ... Hook, 39 ... Abutting part, 40 ... Lock shaft, 41 ... B Clever, 42 ... Lock actuator, 43 ... Motor, 44 ... Cylindrical worm, 45 ... Worm wheel (output member), 46 ... Rotating shaft, 47 ... Gear, 48 ... Teeth, 49 ... Spring bias lever, 50 ... Anti Panic spring, 51 ... stopper wall, 52 ... slot, 53 ... pin, 54 ... sub-lock shaft, 55 ... sub-lock lever, 56 ... projection, 57 ... long hole, 58 ... contact arm, 59 ... state detection switch, 60 ... Key lever, 61 ... Rotating shaft, 62 ... End opening cylinder, 63 ... Door key cylinder, 64 ... Connection link, 65 ... Key interlocking disk, 66 ... Connection notch, 67 ... Switch notch, 68 ... Projection, 69 ... Key operation detection switch, 70 ... Shaft, 71 ... Inner lever, 72 ... One end, 73 ... Inner door handle, 74 ... One motion lever, 75 ... Pressing part 76 ... Guide, 77 ... Pin, 78 ... Keyless lever, 79 ... Spring, 80 ... Projection, 81 ... Corner, 82 ... Inner lock button, 83 ... External lever, 84 ... Insert flange, 85 ... Through hole, 86 ... Shaft hole, 87 ... large diameter shaft hole, 88 ... coil part, 89 ... first leg part, 90 ... first storage part, 91 ... second leg part, 92 ... second storage part, 93 ... locking part, 94 ... engagement recess 94.

Claims (2)

A lock lever 41 connected to the lock actuator 42 and displaced to an unlock position U and a lock position L with the lock shaft 40 as a center, and a lock lever 41 fixed to the lock shaft 40 and moved in the lock direction. When the lock lever 41 moves in the unlocking direction due to mechanical contact with the lock lever 41, it follows the lock lever 41 due to the elasticity of the anti-panic spring 50. The spring biasing lever 49 that moves in the unlocking direction and the door opening operation of the outer door opening handle 34 of the door are moved from the standby position toward the operating position and connected to the spring biasing lever 49. The engagement position U ′ that can transmit the opening movement to the ratchet 14 according to the displacement of the spring urging lever 49 and the non-engagement position L that does not transmit it. The spring biasing lever 49 is overlapped with the back surface of the spring biasing lever 49 in contact with the front side of the lock lever 41, and the lock shaft 40 is inserted into the lock. The shaft hole 86 of the lever 41 is formed in a two-stage shaft hole, and the coil portion 88 of the anti-panic spring 50 is accommodated in the upper large-diameter shaft hole 87 and engaged with the lock lever 41. The first leg portion 89 communicates with the large-diameter shaft hole 87 and is housed in the first housing portion 90 having the same depth as the large-diameter shaft hole 87, and the front side of the lock lever 41 or the spring biasing lever 49. A vehicle door latch device in which a fan-shaped shallow second storage portion 92 for storing the second leg portion 91 of the anti-panic spring 50 to be engaged with the spring urging lever 49 is formed on the back surface of the vehicle door latch. Anti-panic mechanism of. The vehicle according to claim 1, wherein the spring biasing lever (49) is provided with an engagement recess (94) for engaging the tip locking portion (93) of the second leg portion (91) so as not to protrude from the surface of the spring biasing lever (49). Anti-panic mechanism for door latch device.

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